yan euymbeke



2- Sheets-Shgaet 1.

(No Model.)

J. VAN RUYMBE'KE.

' EVAPORATOR.

Patented July 16; 1895.

( N o Modei.) I 2 Sheets-Shet 2.

' J. VAN RUYMBEKE.

' EVAPORATOR.

Patented July 16, 1 895.

r- 1w n W I a vi'vzeases NITED 'STATES PATENT OFFICE;

JOSEPH RUYMBEKE, OF CHICAGO, ILLINOIS, ASSIGNOR OF ONE-HALF TO WILLIAM F. JOBBINS, OF SAME PLACE.

EVA PO RATO R.

SPECIFICATION forming part of Letters Patent No. 542,907, dated July 16, 1895. Application filed January 21, 1895- $eria1 No. 535,715. (No model.)

To aZZ whom it may concern.-

Be it known that I, JOSEPH VAN RUYMBEKE, a subject of the King of Belgium, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Evaporators; and I do hereby declare the following to be a full, clear, and exact description of the invention, which will enable others skilled in the art to 1 0 which it appertains to make and use the same.

My invention relates to various improvements in evaporators which are designed particularly for the evaporation of waste soaplyes, but which are also well adaptedfor the evaporation of other solutions.

The particular points of, novelty in the invention will be pointed out in the following description and claims.

In the accompanying drawings, Figure 1 is a side elevation-of the evaporating apparatus; Fig. 2, a plan view thereof with the condenser and vacuum-pump removed; Fig. 3, a vertical sectionalview of the evaporator, and Fig. 4 a sectional view of a modified form of catch-all.

In all of the above views corresponding parts are designated by the same letters of reference. I

The evaporator A is preferably made of the general cylindrical shape shown, of proper 0 dimensions, according to the desired amount of material to be evaporated, and of a height depending on the number of dash-plates.

which it may be necessary to use with the v particular solutions treated. 5 B is a door in the lower part of the evaporator for the removal of the salt or material deposited therein, the said door being suitably packed in order that a vacuum may be maintained within the apparatus.

Mounted on the side of the evaporator to one side of the door B is a draw-oft tube 0, provided with the valve a at its lower end and with a petcock b at its upper end. The draw-off tube 0 connects with the interior of 5 the evaporator. by pipes c,two of which are shown mounted one above the other. These pipes are provided with valves (1 therein. This draw-01f tube is used for the purpose of drawing off asmall quantity of the liquid for the purpose of testing the same. This is done by closing the valve a and petcock b and by opening the valves (1 d, whereby the tube 0 will be filled with the liquid. The valves d d are now closed and the valve a opened, air being admitted by opening the petcock, and the small quantity of liquid drawn into the tube 0 flows out of the same and may be tested in any suitable way.

Mounted Within the evaporator directly above the door B is a flue-sheet e, and is a similar flue-sheet mounted within the evaporator a'suitable distance above theflue-sheet 6. These flue-sheets e and fare perforated and are connected by vertical flues g, arranged in any suitable way. The flue-sheets efand fines g constitute a steam-drum, and the space beneath the same constitutes the salt-chamber when saline liquids are evaporated. Steam is admitted into-the space between the flue-sheets e andfthrough a pipe h, the pressure of which steam is indicated by a gage t, and condensed water is removed from the steam-drum through a valved pipe j, mounted directly above the lower flue-sheet e. An ordinary water-gagek indicates the amount of condensed water in the steamdrum, and a longer water-gage Z communicating with the interior of the evaporator above and below the steam-drum indicates the height of the liquid in the evaporator.

The material to be concentrated is introduced into the evaporator through a valved pipe m,.mounted preferably directly above the fiue-sheetf.

D is a door mounted on the side of the evaporator directly above the steam-drum, and through which theinterior of the evaporator may be reached for the purpose of cleaning or repairing the same.

The degree of Vacuu n1 within the apparatus is indicated by a vacuum-gage 'n, placed on the side of the evaporator above the normal level of the liquid therein.

E is a dash-plate mounted within the evaporator above the door D and provided at one side with an opening'o. Extending up from this opening 0 and secured to a flange riveted directly to the, dash-plate E is a vertical pipe 19.

F is a second dash-plate mounted within the evaporator a short distance above the upper open end of the pipe 19, and which is pro- Vided with an opening q therein diametrically opposite from the opening 0 in the dashplate E. Extending up from the opening q and riveted to the dash-plate F is a flange with pipe 1", which corresponds to the pipe 19.

G is a third dash-plate mounted immediately above the upper open end of the pipe 0', and which is provided with an opening 8 therein diametrically opposite from the opening q of the dash-plate and in line with the opening 0 of the dash-plate E. Extending up from the opening 8 is a pipe at, which extends into the upper part of the evaporator and may be of any desirable height. This pipe t is providedat its upper end with a curved pipe or elbow M, which faces the shell of the evaporator and is a short distance therefrom.

While I have'shown and described three dash-plates E, I and G, it is to be understood I am not to be limited to this number, since with some liquids good results may be obtained by using only one dash-plate, while with others the use of more than three dashplates may be desirable.

Extending out from the side of the evaporator near the top thereof is a vapor-pipe H, which connects with the upper end of a horizontal catch-all drum I near one end thereof. J is a pipe which extends from the upper end of said catch-all drum near the other end thereof, and which connects with the condenserK,having thereceiving-tank L beneath the same.

Instead of making use of a condenser and receiving-tank of the type'shown the vapors from the evaporator, when of no value, may be condensed by an ordinary jet-condenser and thence be allowed to run to waste in the sewer or elsewhere.

M is a vacuum-pump for maintaining a partial vacuum in the interior of the apparatus.

Instead of making use of an ordinary horizontal catch-all drum, such as I, a modified form, such as that illustrated in Fig. 4, may be employed, the latter consisting of a vertical drum N, supported in any suitable manner, and having a vertical pipe 0 extending up through the bottom to a point near the top of the drum N. The lower end of the pipe 0 connects with the condenser K, (or jet-condenser of the vacuum-pump, if used,) either directly or through a receiving-drum. (Not shown.) The vapor-pipe I-I leads into the drum N at a point below the upper open end of the pipe 0.

o h 1) are pipes connecting the interior of the evaporator immediately above the dashplates E, F, and G with a horizontal pipe w, which extends out from the evaporator immediately above the steam-drum. A plug a: is screwed into the end of the pipe w, which plug may be removed and the pipe w cleaned.

Extending out from the evaporator beneath the steam-drum is ahorizontal pipe g, which is connected with the pipe w by a pipe 2, and said pipe y is also connected near its end with the catch-all drum I (or N, Fig. 4) by a pipe at. The pipey is provided at its end with the screw-plug I), like the plug as, which may be removed and the interior of the pipe y cleaned. The valved pipe 0 connects with the pipe y, and through which theliquid above the deposited salt and also the accumulated liquid above the dash-plates or within the catch-all drum may be removed.

In the concentration of soap-lyes for obtaining crude glycerin the vacuum 'pump is started and creates a high vacuum, preferably above twenty-eight inches, within the evaporator. By reason of this vacuum the liquid is drawn into the evaporator through the valved pipe m until it about covers the steam-drum, when the supply is out off. Steam of the proper temperature is nowintroduced through the valved pipe h and surrounds the fines g, which are of course filled with the liquid, and the heat thus imparted to the liquid by the dues g and the flue-sheets e andfcauses the water contained t0 vaporize off. The steam as it condenses within the steam-drum may be removed from time to time through the valved pipe j. The water thus evaporated passes up through the opening 0 in the dashplate E and pipe 19, thence through the opening q in the dash-plate F and pipe 0, thence through the opening .9 in the dash-plate G, pipe 15, and curved pipe u,thence through the open eduction H into and through the catchall drum I, (or N, Fig. 4,) thence through the pipe J to the condenser, in which the vapors are condensed, and pass to sewer or are collected in the receiving-tank L. The salt crystallized from the liquid deposits in the saltchamber beneath the steam-drum, and may be removed therefrom through the door I; and be freed of any liquid contained therein in any suitable way. By reason of the arrangement of dash-plates shown by arranging the mouth of the curved pipe '11. in close proximity to the interior wall of the evaporator and by using the catch-all drum I any heavy or less volatile substances mechanically carried or entrained by the vapors by reason of a sudden increase in the vacuum or in the heat applied will be projected against the dash-plates E, F, and G, or against the sides if the evaporator adjacent to the mouth of the elbow u. or within the catch-all drum I, and these heavier and less volatile substances will be thereby condensed and caught on the dash-plates or within the catch-all drum, from which they will be returned back into the lower part of the evaporator through the pipes o, w, z, y, and a. In this way the water will be separated from the waste soaplye, leaving a concentrated product in the evaporator with most of the salt precipitated therefrom.

By making use of the system of return-pipes shown, and particularly by connecting the space above and below the steam-drum by a pipe 2, the liquid within the evaporator is allowed to circulate through said pipe, and the heat will be more rapidly imparted to the entire volume of liquid, whereby evaporation is accelerated.

By making use of a catch'all like that shown in Fig. 4 the danger of extraneonssubstances being carried over with the vapors is further decreased, as any less volatile matters in being projected rapidly through the eductionpipe H will strike against the pipe 0, and will be condensed on the latter and collected at the bottom of the'drum N, returning to the evaporator through the pipe 0.. The volatile matter will pass up into the upper open end of the pipe 0 and thence to the condenser, whereit is condensed and collected, if desired, or be allowed to run to waste.

' Should the dues and flue-sheets become caked with salt a suitable liquid, such as lye not saturated with salt, may be introduced into the evaporator and allowed to remain therein until all of the salt has been dissolved out. r l Having now described my invention, what I claim, and desire to secure by Letters Patent, is as follows:

1. An evaporating apparatus, consisting of an evaporating'chamber, means for heating the liquid therein, two or more dash plates within the evaporator above the level of. the liquid therein, the openings in said dash plates being so arranged as to interrupt the free passage of the vapors, and independent- 7 return pipes placed externally connecting the spaces above said dash plates with the lower part of the evaporating'chamber, whereby the vapors condensed on said dash plates will be returned for re-evaporation, substantially as set forth. a

2. An evaporating apparatus, consisting of an evaporating chamber, means for heating the liquid therein; two or more dash plates within the evaporator above the level of the liquid therein, the openings in saiddash plates being so arranged as to interrupt the free passage of the vapors; independent return pipes placed externally connecting the spaces above said dash plates with the lower part of the evaporating chamber, whereby the vapors condensed on said dash plates will be returned for re-evaporation, and a catchall on one side of the evaporator and connected therewith, substantially as set forth.

An evaporating apparatus, consisting of an evaporating chamber, means for heating the liquid therein, two or more dash plates within the evaporator above the level of the liquid therein, the. openings in said dash plates being so arranged as to interrupt the free passage of the vapors, independent return pipes placed externally connecting the spaces above said dash plates with the lower.

part of the evaporating chamber, whereby the vapors condensed on said dash plates Will be returned for re-evaporation, a catchall at one side of the evaporator, and connected. therewith, and a condenser connected with said catch-all,substantially as set forth.

4. An evaporating apparatus, consisting of an evaporating chamber, means for heating.

the liquid therein; two or more dash plates within the evaporator above the level of the liquid therein, the openings in said dash plates being so arranged as to interrupt the free passage of the vapors, independent return pipes placed externally connecting the spaces above said dash plates with the lower part of the evaporating chamber, a catch-all at one side of the evaporator and connected therewith; a condenser connected with said catch-all, and a vacuum pump connected with said condenser for maintaining a vacuum in the apparatus, substantially as set forth.

5. An evaporating apparatus, consisting of an evaporating chamber, a'steam drum in said evaporator, a salt chamber beneath said drum, a door for said salt chamber, two or more dash plates within the evaporator, the openings in said dash plates being so arranged as to interrupt the free passage of the vapors,

and return pipes connecting the spaces above said dash plates with the lower part of the .evaporating chamber, whereby the vapors condensed on said dash plates will bereturned for re-evaporation, substantially as set forth. 6. An evaporating apparatus, consisting of an evaporating chamber, a steam drum in said evaporator, a salt chamber beneath said drum, a door for said salt chamber, two or more dash plates within the evaporatonthe openings in said dash plates being so arranged as to interrupt the free passage of the vapors, and independent return pipes placed externally leading from the spaces above said dash. plates into the lower part of the evaporator for the'purpose mentioned, substantially as setforth. r

7. An evaporating apparatus, consisting of an evaporating chamber, means for heating said evaporator, an opening in said dash plate, a pipe extending up from said opening and a ICC the liquid therein, a dash plate mounted in curved pipe at the upper end of said pipe, the

mouth of said curved pipe being adjacent to the interior wall of the evaporator, substantially as set forth.

8. An evaporating apparatus, consisting of an evaporating chamber, means for heating the liquid therein, two or more horizontal dash plates arranged one above the other in said evaporator, the openings in said dash plates being so arranged as to interrupt the free passage of the vapors, pipes extending up from said openings with their upper open ends adjacent to the dash plates immediately above the same, and a curved pipe on the end of the upper pipe, the mouth of said curved pipe being adjacent to the interior walls of the evaporator, substantially as set forth.

9. An evaporating apparatus, consisting of an evaporating chamber, means for heating the liquid therein, two or more dash plates within the evaporator above the level of the liquid therein, the openings in said dash plates being so arranged as to interrupt the free passage of the vapors, return pipes 12, v, 1) leading from the spaces above said dash plates, a pipe to with which the pipes 12 are connected,

a screw plug a: in the pipe to, a pipe 'y leading into the lower part of the evaporator, and a pipe 2 connecting the pipes 20 and y, substantially as set forth.

10. An evaporating apparatus, consisting of an evaporating chamber, means for heating the liquid therein, two or more dash plates within the evaporator above the level of the liquid therein, the openings in said dash plates being so arranged as to interrupt the free passage of the vapors, return pipes 11,1), 2; leading fro m the spaces above said dash plates, a pipe to with which the pipes '12 are connected, a pipe y leading into the lower part of the evaporator, a pipe 2' connecting the pipes to and y, and a catch-all to one side of the evaporator and connected with the same, substantially as set forth.

11. An evaporating apparatus, consisting of an evaporating chamber, means for heating the liquid therein, two or more dash plates within the evaporator above the level of the liquid therein, the openings in said dash plates being so arranged as to interrupt the free passage of the vapors, return pipes o, o, 1; leadin g from the spaces above the said dash plates, a pipe to with which the pipes 71 are connected, a pipe y leading into the lower part of the evaporator, a pipe 2 connecting the pipes to and y, a vertical catch-all druin N to one side of the evaporator and connected therewith, a pipe 0 extending into said catch-all drum with its upper open end above the vapor pipe from the evaporator and with its lower end connected with a condenser, and a pipe 0, connecting said condenser with the pipe 11 substantially as set forth.

This specification signed and witnessed the 21st day of December, 1894.

JOSEPH VAN RUYMBEKE.

Witnesses:

CHAS. F. TYLER, WILLIAM F. FORBES. 

